2. doubt, mistrust, misgiving. Suspicion,distrust are terms for a feeling that appearances are not reliable. Suspicion is the positive tendency to doubt the trustworthiness of appearances and therefore to believe that one has detected possibilities of something unreliable, unfavorable, menacing, or the like: to feel suspicion about the honesty of a prominent man.Distrust may be a passive want of trust, faith, or reliance in a person or thing: to feel distrust of one's own ability.